Improvement in rotary hand-stamps



J. P de BUIGNE. Rotary Hand-Stamp.

. Patented Oct. 14, 1879.

Jnrenl'or. M 97 N-FETERS. PHDTO-LITHOGRAFNEH. WASHINGTON. D C.

UNITED STATES PATENT OFFICE.

JOSE]? F. DE BUIGNE, OF GRATZ, AUSTRIA-HUNGARY.

IMPROVEMENT IN ROTARY HAND-STAMPS.

Specification forming part of Letters Patent No. 220.5 [8. dated October14, 1879; application filer July 1, 1879; patented in Austria, November7, 1874.

To all whom it may concern:

- Be it known that I, JosEF F. DE BUIGNE, of Gratz, in the Empire ofAustria-Hungary, have invented a new and Improved Rotary- (JylinderStamp, of which the following is a specification.

My improvement relates to a self-inking hand-printing apparatus whichoccupies, in comparison with apparatus heretofore employed for the samepurpose, a smaller space, and is also of a less weight, while the impression-surface is the same.

The apparatus constructed according to my invention may be carried onthe person withoutcausing inconvenience, and may be combined with otherobjects, such as keys, pocketk'nives, or similar articles which it isusual for a person to carry.

In carrying the said invention into practice I employcylinder-printing-that is to say, the type is on the circumferentialsurface of a revolving cylinder.

in the accompanying drawings, Figure 4 represents my improved rotarystamp attached to a suitable handle. Fig. 3 represents the rotary stampattached to a knife. The other figures represent various views,morefully referred to in the following specification.

a, Fig. 1, represents the impression-cylinder, on the circumference ofwhich is placed the type, and which, by its rotation, imparts arevolving'motion to an adjacent inking-roller, b, touching on the otherside a receiver, 0, from which it takes up the ink or color, in order totransmit it to the impression-cylinder 0.. I This receiver 0 consists ofa capillary elastic material-for instance, common sponge-andcommunicates with a chamber, 0?, the capacity of which corresponds withthe volume of liquid ink or color which this receiver is capable ofabsorbing and: retaining, so that the capacity of the receiver may notbe exceeded when feeding the apparatus.

"From the said chamber d openings 6 6, capable of being closed up, leadto the exterior. One of these holes serves for filling the chamber,while the other provides means for the escape of the air.

The most suitable manner of fillin g the chamber d with ink isto. use aninjection-tube, as

represented in Fig. 2.

The cylindrical form of the said receiver 0 permits any desired portionof its surface to be brought in contact with the inking-roller b, thesaid receiver being provided for this purpose with a handle or tappet,f, by means of which it can be rotated from the outside of theapparatus.

The apparatus is placed in a box provided with a locking device, which,when opened, permits the impression-cylinder to be brought in contactwith the paper, so that when rolling on it, and by exercising a suitablepressure while in use, the type is printed on the paper.

The impression-cylinder a has at least one rolling-flange, a, of thesame diameter as the said impression-cylinder, in order to supply thehollow places on the circumference of the impressioncylinder caused bythe arrangement of the type, and to enable a regular rolling motion onthe paper. It serves also to facilitate the commencement of the motionat that point where the commencement and end of the type leaves a hollowspace in the circumference of the cylinder, as shown at 9, Fig. 1, forthe purpose of preventing at the starting position the ends of the typefrom touching the paper, and thus avoid scrawling.

The stopping mechanism, which automatically arrests theimpression-cylinder when in use, after having made the desired portionof arotation, consists of a curve, which produces, by reason of itsslope, the impulse for the stopping by conducting while the cylinderrotates a catch against a stop, whereby the impression-cylinder isbrought to rest. In order to turn the impression-cylinder when nextrequired, this catch is brought back to its starting position every timethe apparatus is to be used. Whatever description of stop mechanism maybe applied, it will always be necessary to release or to engage the samefrom the outside. This releasing or engaging may be effected by a simpledevice, hereinafter described. In Fig. 3, which represents a sideelevation of my apparatus combined with a pocketknife, this releasing orengaging device consists of a helical curve, It, fixed to theimpression-cylinder a, and consequently turning with the same, having aportion, h, cut away, so that a suitable catch, j, can pass freelybetween the two ends of the said curve. This catch is provided with anotch, 1', through which the curve h may pass. Supposing theimpression-cylinder a is to turn when in use in the direction of thedial of a watch, and the exterior ends of the curve h at the beginningof the rotation are in a position in line with the said notch i in thecatch j, one end of the curve will, on the commencement of mo tion ofthe cylinder a, enter the said notch i of the catch, which will thusmove according to the slope of the said curve. As the latter dis placesthe catch a second revolution of the impression-cylinder is prevented onaccount of the other end of the curve striking the part of said catch jwhich is notched. By this arrangement the catch is pulled so far towardthe center of the impression'cylinder a that a tappet, n, placed at theother end of the said catch j, is brought in contact with the rear partof the spring 1:, which forms the spring-catch of the locking device orcover 1 of the box, the position of the said cover when the case isclosed being indicated by dotted lines, Fig. 3. Now, if the spring is ispressed to the right in order to open the cover I, the catch j will atthe same time be released and drawn back by the said spring, which comesin contact with the aforesaid tappet 11. When the said spring isreleased it will return to its normal position without drawing thecatch-that is to say, it leaves the said catch in such a position as topermit the end of the aforesaid curve h to again enter the notch 2', toallow of a new impression.

It will be seen that there is no special operation requisite forreleasing the catch and the impression-cylinder, as they are bothreleased simultaneously on opening the box. When, however, the box isonce opened a pressure from the left to the right must be exerted uponthe spring 7:, in order to release the catch j before each new imprint.

To prevent the impression-cylinder as well as the catch from beingdisplaced by accident,

I provide a catch acting simultaneously as a spring, pressing on the onehand against the cylinder and on the other against the wall of the box,and serving thus as a back-spring for itself as well as for thecylinder.

To render the releasing operation still simpler, I have shown in Figs.4, 5, 6, 7 afurther arrangement, by means of which the said operation iseffected at the instant the apparatus is put on or taken off the paper,and by applying a touch or movable piece. The position of the stoppagejust before the printing operation takes place is shown in Figs. 4 and5, the box being opened.

Acatch, j, pivoted at the point m, is provided on one side with atappet, ac, which is in contact with the inside of a curved surface, h,fixed to the impression-cylinder. 0n the other side the said catch restson a pin, 2, of the touch or movable piece 1), which is maintained inits position by an elastic force, and projects from the circumference ofthe cylinder in this position.

When putting the apparatus on the paper, the movable piece p is forcedin or repelled, as shown in Figs. 6 and 7, so that it will no longerproject beyond the circumference of the said cylinder. In this movementthe catch j, which, during this operation, remained stationary, will bereleased from the pin 2 of the said movable piece 10. In the nextmovement of the impression-cylinder the catch j will be raised by reasonof the tappet a: entering the curve h to such an extent that itinterferes with the rotation of a pin, 3, fixed on the cylinder, thuscausing the latter to stop, as indicated in Fig. 8.

By the raising of the aforesaid catch produced by the slope of thecurve, the said catch again comes into contact with the pin 2 of themovable piece 0, and the said piece is brought back to itsstarting-point as soon as it is moved forward by the elastic force whentaking off the punch from the paper, as shown in Fig. 5. It follows thatthe catch engages by the revolving motion of the cylinder, and is againreleased by taking off the apparatus from the paper.

I may modify the construction of the movaable piece with stoppagewithout employing a curve, as represented in Figs. 8 and 9". Inconnection with the cylinder at is arranged a separate disk, 12, withone point of its periphery on the paper. This disk constitutes at thesame time the movable piece and the catch. The pivot m of this disk 10is placed eccentrically with regard. to the center a of theimpression-cylinder a.

On moving the apparatusover the paper, as in Fig. 9, a revolving motionis imparted to the pressing-cylinder as well as to the disk 0. Duringthis rotation a pin, 1, fixed on the cylinder a, freely crosses the pathof a rib, 2, fixed on the disk on account of the ad- };anced position ofthe said pin, as shown in The rotation, however, of the disk 11 islimited by striking against a pin, 3, on the box in such a manner thatit is firmly maintained, as shown in Fig. 9, as soon as the rib 2,placed upon it enters the path of the pin, which afterward serves as astop for it. At the moment when the apparatus is taken off the paper thefriction between the former and the disk p will also cease, and the saiddisk therefore flies back to its starting-point on account of theelastic force of a suitable spring, as shown in Fig. 8, whereupon anewimpression may be made.

The chief difference between the examples given for the touches ormovable pieces is that the former touch is indirectly and the seconddirectly influenced by the rotation of the impression-cylinder. Itherefore call each piece a touch which touches the paper for the mainor secondary purpose of an influence upon the rotation of theimpression-cylinder, and which causes, indirectly or directly, thestopping or releasing, whatever the man ner of operating andconstruction may be.

In order to make the greatest use of the periphery of theimpression-cylinder, I provide the following arrangement with regard tothe starting-point of coloring the impression-cylinder. Properlyspeaking, those parts of the type which first pass the inking-rollerought also to come first to the printing.

If, for various reasons, it should be difficult to make thestarting-point of the inking coincide with the starting-point of theimpression without losing any part of the useful circumferential surfaceof the pressing-cylinder, I allow any suitable point of the surface ofthe impressioucylinder to come in contact with the inking-roller. At onerevolution of the impressioncylinder each point of its periphery isobliged to make also one turn consequently each point will pass theinking-roller and print. In this case the first imprint of the apparatuswill not be inked or colored on the length from the starting point ofthe imprint to the starting-point of the inking, but each followingimprint will be entirely inked, and even the above-mentioned length ofthe circumference of the cylinder (while accomplishing the lastimpression) will be inked in advance for the following imprint.

When the apparatus has not been in use for a long time, the ink or colorwill partly pass over to the uninked parts of the type, which receive adead appearance when making the next imprint. It will be sufficient,however, in such a case to make a trial imprint before using theapparatus, as then all others successivel y made will be regularly inkedor colored.

In order to provide for better work or execation, I cause the cylinderto make a partial rotation after its use, thus bringing thecoinmencement of the line to the inking-roller, and afterward, beforeemploying the apparatus by the inversed rotation back to the startingposition.

To obviate the necessity of employing a hand or other device foreffecting the partial rotation of the cylinder, I make it depend on theopening and closing of the borrower.

In Fig.8 the box is shown closed, and is shown open in Figs. 4. and 9,the cover or lookin g-piece Z of the box being pivoted at 0, which isarranged ecccntrically with regard to the center of the cylinder.

A pin, r, fastened, to the locking-piece 1, passes through a circularslot, .9, in the boxwall, and, projecting through the said wall, entersa radial slot, t, Fig. 8, made into the impression-cylinder a, whichcylinder is further provided with a concentric opening, a, Fig. 10, intowhich the slot topens. In opening the cover or looking -piece l, Fig. 9,the pin r takes the cylinder along with it till the said pin passes fromthe radial slot t into the concentric opening ua position whichcorresponds to the starting position of the cylinder, which is nowpermitted to move freely. In closing the box again, which can only beeffected in the starting position of the cylinder, the pin 1' reentersthe radial slot t and causes the latter to revolve back, and holds itfast in this position while the apparatus is not being used.

It is advantageous to provide small apparatuses, destined for simplelines, with a second point, 1;, Fig. 3, in order to give a steady guideto the whole when the imprint is being effected.

If greasy inks or colors are to be used with the apparatus, 1 apply tosuch inks or colors some fine purified oilsuch, for instance, as thoseused for chronometers-in order to protect the apparatus from theinjurious effect which such greasy inks or colors would otherwise have.

Having thus fully described the said invention and the manner ofperforming the same, I claim as my invention and desire to secure byLetters Patent 1. A rotating impression-cylinder, a, provided with ahelical curve, It, in combination with a catch, j, provided with anotch, i, at one end and a tappet, n, at its other end, and a spring, k,arranged to operate in the manner and for the purpose substantially asset forth.

2. The combination of the impression-cylinder a, provided with a curvedsurface, h, and projecting pin 3, the touch 19, with projecting pin 2,and the hinged catch j, with tappet :0, arranged to operatesubstantially as and for the purpose specified.

3. A rotating impressioncylinder, a, provided with a radial slot, 15,and concentric opening a, made in said cylinder, in combination with aprojecting pin, r, attached to the locking-cover I, arranged to operatein the manner and for the purpose substantially as herein described andset forth.

JOS. F. DE BUIGNE.

Witnesses:

IGNAZ GELLAMIL, GUsT. FRECHM'EISTER.

